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The acceleration of the ball can be easily found using the kinematic equation if = vi + at. Where vi = initial velocity, if = final velocity, a = acceleration, and t = seconds. The acceleration is -0.1 m/s^2.

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āˆ™ 9y ago
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āˆ™ 12y ago

Magnitude of acceleration = (change in speed)/(time for the change) = (-3)/(30) = -0.1m/s2 .

We can't say anything about the direction of acceleration, because there's no

information about the direction of the ball at any time during the observation.

To be honest about it, the question says "velocity" twice, but it only tells us

speed, not velocity.

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āˆ™ 10y ago

-5 m/s, using the equation a = delta v over delta t to solve for acceleration.

a = 15 m/s - 25 m/s/2 = -5 m/s

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āˆ™ 13y ago

-100 meters/second/second in the same direction of travel.

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Q: A rolling ball has an initial velocity of 5 meters per second 30 seconds later its velocity is 2 meters per second What is the acceleration of the ball?
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